Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9729344 | Integrating a trigger button module into a mass audio notification system | Pedro Andrade, Ying Du | 2017-08-08 |
| 9344820 | Method, apparatus, and system for mass audio notification field | Pedro I. Sanchez, Ying Du | 2016-05-17 |